Capacity: 20kVA / 18,000W ; Input frequency range [40 - 70 Hz] ; Input power factor = 0.99 Nominal Voltage (100% load) ; Ouput power factor = 90% - 100% ; THDi = 2% (Linier Load), = 4% (Non-linier load) ; Hot-swappable battery design ; Smart battery charger design ; Parallel function on 6kVA & 10kVA